body {
  background: url(../img/about_us_background.jpg) center 0;
  font-family: "微软雅黑";
}
li{
	list-style: none;
}
a{
	text-decoration: none !important;
	display: block;
}

.header_top {
  padding-top: 3px;
  background: #000000;
}

.header_top ul li a {
  color: #cccccc;
  font-size: 12px;
  padding: 0 15px;
}

.content {
  padding-top: 25px;
}
.content .nav_first{
	width: 100%;
	height: 101px;
	text-align: center;
	position: relative;
	text-align: center;
}
.content .nav_first .nav_logo{
	position: absolute;
	height: 101px;
	width: 100%;
	left: 0;
	top: 0;
}
.content .nav_first .nav_logo a{
	width: 201px;
	height: 101px;
	position: absolute;
	left: 50%;
	margin-left: -118px;
	
}
.content .logo{
	display: none;
	text-align: center;
}
.content .logo a{
	display: inline-block;
}
.content .sm_nav .icon-style {
  display: block;
  width: 40px;
  height: 5px;
  margin-top: 5px;
  border-radius: 1px;
  background: #CCCCCC;
}
.content .nav_first li{
  padding-top: 45px;
  margin: 0 42px;
}
.content .nav_first ul {
	display: inline-block;
}
.content .nav_first ul li a {
  color: #666666;
  font-size: 18px;
  padding: 15px 0;
}
.content .nav_first ul li a:hover{
	background-color: none;
	background: url(../img/nav_line.jpg) repeat-x center bottom;
}
.content .nav_first ul li .default{
	background: url(../img/nav_line.jpg) repeat-x center bottom;
}
.content .place{
	overflow: hidden;
	border-bottom: 2px solid #999999;
	margin-top: 25px;
	color: #666666;
	font-size: 14px;
}
.content .place p{
	float: left;
	margin: 0 0 3px;
}
.content .place img{
	padding-top: 6px;
	float: left;
	margin: 0 8px;
}
.content .place a{
	color: #666666;
	font-size: 14px;
}
.content .company{
	margin-top: 75px;
}
.content .company_left{
	font-size: 14px;
}
.content .company .company_left .top {
	padding: 25px 0 0 42px;
}
.content .company .company_left .top ul{
	overflow: hidden;
	padding: 0;
}
.content .company .company_left .top li{
	float: left;
	text-align: center;
	background: #3a6d84;
	margin-right: 20px;
}
.content .company .company_left .top a{
	width: 120px;
	height: 50px;
	padding-top: 5px;
}
.content .company .company_left .top span{
	color: #ffffff;
}
.content .company .company_left .top i{
	font-style: normal;
	font-size: 12px;
	color: #ffffff;
}
.content .company .company_left img{
	margin-top: 30px;
}
.content .company .company_right{
	color: #666666;
	font-size: 14px;
	line-height: 30px;
}
.content .company .company_right h3{
	margin-bottom: 35px;
	text-align: center;
	color: #333333;
}
.content .company .company_right p{
	margin: 0;
	text-indent: 2em;
}



.footer{
	margin-top: 80px;
}
.footer h4{
	color:#333333;
}
.footer p,span{
	color:#666666;
}
.footer .text_position{
	padding-left: 54px;
}
.footer ul{
	overflow: hidden;
	clear: both;
	padding: 0;
}
.footer li{
	margin-right: 15px;
}
.footer .footer_text{
	display: inline-block;
	padding: 38px 0 15px;
}





@media (max-width: 767px) {
	.content .logo{
		display: block;
		float: left;
	}
	.content .nav_first div{
		display: none;
	}
	.content .nav_first{
		height: 100%;
	}
	.content .nav_first ul{
		width: 100%;
	}
	.content .nav_first li{
		margin: 0 9px;
		padding: 0;
		text-align: left;
		background: #383837;
	}
	.content .nav_first ul li a{
		padding-left: 10px;
		color: #CCCCCC;
	}
	.content .nav_first li:hover{
		background: #2d2b29;
	}
	.content .nav_first ul li a:hover{
		background: none
	}
	.content .nav_first ul li .default{
		background: none;
	}
	.content .company{
		margin-top: 0;
	}
	.content .company .company_left img{
		margin: 25px auto;
	}
	.content .company .company_left .top{
		padding: 25px 0 0 10px;
	}
	.content .company .company_left .top li{
		margin-right: 5px;
	}
	.content .company .company_left .top a{
		width: 82px;
	}
	.footer{
		margin-top: 50px;
	}
	.footer .text_position{
		padding-left: 15px;
	}
	.footer .list_text{
		width:50%;
		height: 90px;
		text-align: center;
	}
	.footer ul{
		display: inline-block;
	}
	.footer .footer_text{
		padding:0 0 15px;
	}
	.footer .col-sm-12{
		text-align: center;
	}
}
@media(min-width: 768px) and (max-width: 991px) {
	.content .nav_first div{
		display: none !important;
	}
	.content .logo{
		display: block;
	}
	.content .nav_first ul.navbar-nav{
		float: none;
	}
	.content .nav_first li{
		margin: 0 24px;
		padding: 0;
	}
	.content .company_left img{
    margin: 30px auto;
	}
	.content .company{
		margin-top: 20px;
	}
	.footer .text_position{
		padding-left: 10px;
	}
	.footer .col-sm-2{
		padding: 0;
	}
	.footer .col-sm-12{
		text-align: center;
	}
	.footer .footer_text{
		display: inline-block;
    padding: 15px 0 15px;
	}
}
@media (min-width: 992px) and (max-width: 1199px) {
	.content .nav_first li{
		margin: 0 23px;  
	}
	.content .company {
    margin-top: 50px;
}
	.content .company .company_right{
		line-height: 20px;
	}
	.content .company_left{
		padding: 0 10px 0;
	}
	.footer{
		margin-top: 50px;
	}
	.footer .col-md-3{
		padding: 0;
	}
	.footer .text_position{
		padding-left: 30px;
	}
}